Only 10 vehicles qualified this year for the annual American-Made Index from Cars.com, and just three of them are from domestic brands.

The Ford F-150 pickup took the top spot for the second year in a row, while the Chevrolet Corvette Stingray came in seventh and the Detroit-built Dodge SRT Viper rounded out the list in tenth.

The other seven vehicles on the list -- which disqualifies cars with less than 75 percent of their parts made in the U.S. or Canada and factors in their sales impact on the U.S. economy -- were all U.S. built products from Toyota and Honda.

The American Automobile Labeling Act classifies cars and parts manufactured in Canada as "domestic."

Three other vehicles technically qualified, but were left off the list since they are being discontinued.

The results mark a steady decline in eligible vehicles, down from 14 last year, 20 in 2012 and 30 in 2011, and reflect the growing globalization of the industry, where a Ford Fiesta, for instance, is assembled in Mexico with engines made in Brazil and Romania.